Highest Common Factor of 678, 831 using Euclid's algorithm
Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
HCF Calculator using the Euclid Division Algorithm helps you to find the Highest common factor (HCF) easily for 678, 831 i.e. 3 the largest integer that leaves a remainder zero for all numbers.
HCF of 678, 831 is 3 the largest number which exactly divides all the numbers i.e. where the remainder is zero. Let us get into the working of this example.
Consider we have numbers 678, 831 and we need to find the HCF of these numbers. To do so, we need to choose the largest integer first and then as per Euclid's Division Lemma a = bq + r where 0 ≤ r ≤ b
Highest common factor (HCF) of 678, 831 is 3.
HCF(678, 831) = 3
HCF of 678, 831 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 678, 831 is 3.
Highest Common Factor of 678,831 is 3
Step 1: Since 831 > 678, we apply the division lemma to 831 and 678, to get
831 = 678 x 1 + 153
Step 2: Since the reminder 678 ≠ 0, we apply division lemma to 153 and 678, to get
678 = 153 x 4 + 66
Step 3: We consider the new divisor 153 and the new remainder 66, and apply the division lemma to get
153 = 66 x 2 + 21
We consider the new divisor 66 and the new remainder 21,and apply the division lemma to get
66 = 21 x 3 + 3
We consider the new divisor 21 and the new remainder 3,and apply the division lemma to get
21 = 3 x 7 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 3, the HCF of 678 and 831 is 3
Notice that 3 = HCF(21,3) = HCF(66,21) = HCF(153,66) = HCF(678,153) = HCF(831,678) .
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Frequently Asked Questions on HCF of 678, 831 using Euclid's Algorithm
1. What is the Euclid division algorithm?
Answer: Euclid's Division Algorithm is a technique to compute the Highest Common Factor (HCF) of given positive integers.
2. what is the HCF of 678, 831?
Answer: HCF of 678, 831 is 3 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 678, 831 using Euclid's Algorithm?
Answer: For arbitrary numbers 678, 831 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.